401912 divided by 38 
The aim is to understand the frequency of 38 in 401912.

Step 1:
If we divide 4 by 38, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 38

Step 2:
When dividing 40 by 38, we get 1 with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 2 after subtracting 38 from 40.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 38

On to step 3:
The number 38 fits into 21 0 times, leaving a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we take 0 away from 21, we end up with 21.
Fetch the next digit (9) from the dividend, attach it to 21 and continue: 219 / 38

On to step 4:
38 can be fit into 219 5 times, resulting in a remainder of 29.
The number 5 becomes the next digit in our result. 
Result so far: 105.0
If we take 190 away from 219, we end up with 29.
Fetch the next digit (1) from the dividend, attach it to 29 and continue: 291 / 38

Moving on to step 5:
38 can be fit into 291 7 times, resulting in a remainder of 25.
Write down 7 as next digit of the result. 
Result so far: 1057.0
Deduct 266 from 291 and we're left with 25.
Append the next digit (2) from the dividend to 25 and continue with: 252 / 38

On to step 6:
252 divided by 38 is 6 with a remainder of 24.
The next digit of our result is 6. 
Result so far: 10576.0
If we subtract 228 from 252, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 7:
The number 38 fits into 240 6 times, leaving a remainder of 12.
The next digit of our result is 6. 
Result so far: 10576.6
If we take 228 away from 240, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
When dividing 120 by 38, we get 3 with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 10576.63
Deduct 114 from 120 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 9:
If we divide 60 by 38, we get 1 and a remainder of 22.
The next digit of our result is 1. 
Result so far: 10576.631
Subtract 38 from 60 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 10:
The number 38 fits into 220 5 times, leaving a remainder of 30.
The next digit of our result is 5. 
Result so far: 10576.6315
Subtract 190 from 220 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
The number 38 fits into 300 7 times, leaving a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 10576.63157
Subtract 266 from 300 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 12:
38 can be fit into 340 8 times, resulting in a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 10576.631578
Subtracting 304 from 340 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 13:
38 goes into 360 9 times with a remainder of 18.
Record the quotient 9 as the next digit in the result. 
Result so far: 10576.6315789
Subtract 342 from 360 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 14:
38 can be fit into 180 4 times, resulting in a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 10576.63157894
If we subtract 152 from 180, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Our division results in 10576.63157894 with a remaining 2.8e-08.